Top definition
To shit one's pants in the big game instead of performing under pressure. Just like Joe Flacco every time he plays the Steelers.
Dick LeBeau called all the right plays and made the Ravens QB flacculate all over the place in the game today.

Fred thought he would win big at the poker tables, but he got bad flacculence and flacculated all of his money away.
by fred_berg January 15, 2011
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